Thanks for playing! Appreciate your feedback!
Yea, there is variation to the 'safe' planets size, it's not much but a bit.
Placement of the volcano was tricky, wanted it to make it kind of hard to jump to, but the main purpose is to limit you to one round on that planet, so it could probably get moved to more of a 6 or 7 o'clock position.
Edit - Just remembered to include this: My record is 31 :-)